config: add client window criteria

toml-spec/spec/spec.generated.json

@@ -1775,6 +1775,10 @@
         "types": {
           "description": "Matches windows whose type is contained in the mask.",
           "$ref": "#/$defs/WindowTypeMask"
+        },
+        "client": {
+          "description": "Matches if the window's client matches the client criterion.",
+          "$ref": "#/$defs/ClientMatch"
         }
       },
       "required": []

toml-spec/spec/spec.generated.md

@@ -4004,6 +4004,12 @@ The table has the following fields:
 
   The value of this field should be a [WindowTypeMask](#types-WindowTypeMask).
 
+- `client` (optional):
+
+  Matches if the window's client matches the client criterion.
+
+  The value of this field should be a [ClientMatch](#types-ClientMatch).
+
 
 <a name="types-WindowMatchExactly"></a>
 ### `WindowMatchExactly`

toml-spec/spec/spec.yaml

@@ -3463,6 +3463,10 @@ WindowMatch:
       ref: WindowTypeMask
       required: false
       description: Matches windows whose type is contained in the mask.
+    client:
+      ref: ClientMatch
+      required: false
+      description: Matches if the window's client matches the client criterion.
 
 
 WindowMatchExactly: